Step for poles



June 15, 1926.

E. WISMER STEP FOR POLES Filed Oct. 25, 1924 IN VEN TOR Z1 Was/mgrATTORNEY Patented June 15, 1926.

UNITED STATES PATENT OFFICE.

' EINAR WISMER, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR '10 AMERICANTELE- PHONE AND TELEGRAPH COMPANY, A CORPORATION OF NEW YORK.

srnr r03 POLES.

Application filed October 28, 1924. Serial No. 745,434.

This invention relates to steps for telephone or other poles, and moreparticularly to steps of the detachable type.

One of the objects of the invention is the provision of a holding-devicewhich may be permanently secured to a pole to removably receive a stepand to so attach the same as to prevent an unauthorized person fromclimbing the pole.

Another object consists in the provision of a pole step of suchconstruction as to prevent the operators' foot from slipping whileclimbing the pole.

These and further objects of the invent on will be apparent from thefollowing description, when considered in connection with theaccompanying drawing, in WhlC-h one embodiment is illustrated.

In the drawing Figure 1 illustrates a pole having the improvedstepattached thereto,

' and Fig. 2 is a perspective view of the detached step.

Referring to the drawing, 5 represents a pole which has a holdingmember, in this instance shown in the form of a lag or fetter drivescrew 6, attached thereto. The screw 6 is driven into the pole in ahorizontal direction until the inner surface of its rectangular head 7is within a short distance of the surface of the pole. This space is ustsuffieient to permit the insertion of the square end wall 8 of the step9. The surface 8 has an inverted U-shaped opening 10 which extends intoa substantially rectangular chamber 11'. This chamber has three otherwalls composed of downwardly extending flanges, and an opening isprovided at its under side and a coinciding opening 12 at its top.

The step 9 is shown as having a horizon tally disposed flat or treadsurface extending from the outer flange of the chamber '11. This treadis of such length as to provide a sufiicient space for the foot of aclimber, and a web portion 13 may be provided, as indicated, for thepurpose of reinforcement.

At the outer extremity of the step is provided an upturned portion 14:which functions to prevent the foot from slipping off the tread surfaceof the step 9.

As an alternative form, the holding mem her 6 may be applied in arecess'l5 provided in the pole 5, and such cutaway portion may betreated with any suitable substance to prevent deterioration by rotting.At the lower portion of the recess is provided a declined portion forthe purpose of allowmg drainage of moisture that may tend to accumulatewithin the recess. The depth of .the recess 15 may be sufficient topermit the head 7 of the screw 6 to be retained therein so'that therewill be no projection of. the screw beyond the surface of the pole.

In the attachment of the step 9, which is adapted to be applied in asimilar manner to the lag screws 6 in either position, the

lower opening in the chamber portion of the step is brought into suchalinement with the vertical edges of the screw member as to permit it tobe inserted thereover. The step then slides downwardly until the roundedtop of its inverted U-shaped opening is seated on the rounded shankportion of the lag screw. In this position the chamber portion enclosesthe head portion of the screw, the vertical sides of which registersungly within like sides of the chamber.

The provision-of the improved detachable and comparatively small stepspermits a lineman to carry a number of them forattachment to the holdingscrews permanently provided on poles, while he is climbing, and toreadily remove these steps while descending. After the steps have beenremoved no means will be afforded for the climbing of the poles byunauthorized persons.

It will be obvious from the foregoing description that by means of thisinvention the carrying of ladders or the use of climbing irons bylinemen for the purpose of reaching the lowest permanent step of a pole,which is usually some considerable distance from the ground, will beeliminated.

\Vhat is claimed is:

In a pole step, a threaded member adapted to be permanently attached toa pole in a horizontal position, said member including an enlargerectangular head portion and an intermediate cylindrical portion, a footsupport having a continuous horizontal tread surface abutting andextending outwardly from the pole, and a rectangular chamber portion atone end of said" support, said chamber portion havin' vertical sidewalls and an end wall with an inverted U-shaped opening, the verticalside walls of said chamber portion being adapted to so engage the sidesof the rectangular head portion and said end wall and its inverted U-shaped opening being adapted to so register 10 with the rear of saidhead ortion and said cylindrical portion, respectively, that rocking ofsaid oot support is prevented.

In testimony whereof, I have signed my name to this specification this16th day of 15 October, 1924.

EINAR WISMER.

